N+1 queries occur when iterating over ActiveRecord models while accessing associated records, causing exponential database queries. Using Rails' .includes method to eagerly load associations can dramatically reduce query count—from 1,101 queries down to just 3 in a real example. This optimization technique reduced page load
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Case 1 - The Unoptimized QueryCase 2 - The Partially Optimized QueryCase 3 - The Optimized QueryWrapping it upNeed Help with your Rails App?If you enjoyed this post, check out these related articles next:Sort: